Yeap! that was great, i will study them, and do you know about any news media, i know that the BostonGlobe (https://www.bostonglobe.com/) was a pioneer in terms of responsive web design, and they take specially care for their web. Any other one that you know?
yeap, reviewing those site a realize no one of them do resource hinting, or server push ^_^

it's so difficult to find BIG sites that does each and every one of the performance recommendations :/